Hydrocarbon burner



F. H. IVICFALL.

- HYDROCARBON BURNER. APPLICATION FILED MAY 17, 1921.

1 &8 89g Patented 00b 24, 1922..

2 SHEETSSHEET l.

%;f% INVENTOR WITNESSES ATTO RN EY F. H. McFALL.

HYDROCARBON BURNER.

APPLICATION FILED MAY 17. 1921.

Patented Oct. M, 1922,

2 SHEETS-SHEET 2.

INVENTOR ATTORNEY WITNESSES,

pressure FRAN H. MOFALL, 0F ALLIANCE, QHIO, ASSIGNOR 'IO SALEM, OHIO.

HYDROCARBON BURNER.

Applicatidn filed May 17,

To all whom it may concern:

Be it known that I, FRANK H. MoFALL, a citizen of the United States, residing at Alliance, in the county of Stark and State of hio, have invented new and useful Improvements in- Hydrocarbon Burners, of which the following is a specification.

The object of my present invention is the provision of a hydrocarbon burner for use in pottery kilns with a view to affording heat in such nicely regulated manner that injury to the pottery articles being burned is effectively averted.

To the attainment of the foregoing, the invention consists in the improvement as hereinafter described and definitely claimed.

In the accompanying drawings, forming part of this specification:

Figure l is a side elevation of my novel burner which has been. reduced to actual practice and successfully operated.

Figure 2 is a longitudinal vertical section of the burner.

Figure 3 is a'horizontal section taken in the plane indicated by the line 3-3 of Figure 1.

Figure 4 is a transverse sect-ion taken in the plane indicated by the line 41-4 of Figure 1, looking toward the left.

Similar numerals of reference corresponding parts in all of the he drawings.

Among other elements my novel hydrocarbon burner comprises a casing body 1 to pipe 2 adapted to supwhich is connected a ply air under pressure of from elght ounces forward. end of the to one pound. In the casing body 1 is a threaded aperture 3, and occupying the longitudinal center of the casing body 1 and threaded in the rear wall thereof as indicated by is an oil tube 5, the said tube 5 being connected at the back of the casing body 1 with a 'll' 6, one arm of which is connected to a pipe 7 adapted to supply a low grade of crude oil under a of approximately thirty-five pounds. Another arm of the 'l' 6 receives a gland plug 8, and threaded through the said plug 8 1s aneedle valve 9 the point of which is disposed in a taper bore 10 in a nozzle 10 carried in and by the forward end of the tube 5.

Threaded in the forward wall of the casing body 1 and extending forwardly therefrom is anair nozzle 11 with an inwardly designate views of 1921. Serial No. 470,337.

directed deflector or flange 12 around the opening 13 in its forward end. Interiorly the said air nozzle 11 is provided with fin guides 14, and it will also be noted that the said air nozzle is aperture 15 for the passage of a screw 16 Which is headed exteriorly of the nozzle 11, as indicated by 17.

esting and adjustable rectilinearly on the guides 14 is a tubular member 20 which is of larger diameter than the tube 5 and nozzle 1O in about the proportion illustrated and is provided with a flared forward end 21. Fixed to the rear portion 'of the tubular member 20 and extending rearwardly therefrom and guided in an aperature 22 in the rear wall of the casing body 1 is a handle rod 23. Manifestly through the medium of the said handle rod 23 the tubular member 20 may be adjusted longitudinally to increase or diminish the distance between the forward end of the tubular member 20 and the aperture 13 in the air nozzle 11, and

through the medium of the screw 16 the tubular member 20 may be effectively fixed adjustably in the position in which it is desired for it to remain.

In the actual reduction to practice of my invention which has been successfully operated as hereinbefore lndicated, the air nozzle 11 is four and one-half inches in length,

. 1s of a diameter of three and one-half inches at its rear end, and

is provided with an opening 13 that is one and one-eighth inches in diameter. This size of nozzle has been found to afford the desired results while all other sizes of nozzles failed. It will also be understood-that I ascribe importance to the flange 12 at the forward end of the nozzle 11 inasmuch as said flange 12 serves to deflect and concentrate the air when the air is permtitted to escape between the forward end of the tubular member and the deflector or flange 12, this being as it assures thorough commingling of the air and oil.

In the practical use of my novel burner, the valve 9 is opened to a very slight extent. and the air nozzle 11 and the parts therein are initially heated by subjecting the nozzle to the heat of burning oil-soaked waste or other fuel. The temperature afforded by the burner at the commencement of the operation is preferably about 300 F., and the heat is gradually increased. At the comprovided with a radial advantageous inasmuch tubular member .sup

mencement of operation the oil is co-mmingled with air at the rear end only of the 20, but this is sufficient to port combustion at the beginning of operation, both the oil and the air being heated as before stated. After the starting of the burner the screw 16 is loosened, and the tubular member 20 is retracted to a slight extent whereupon a large volume of air will be permitted to pass between the forward end of the member 20 and the the temperature afforded will be gradually increased. This gradual increase in the temperature afforded is materially advantageous i inasmuch as it tends to prevent injury to the pottery articles being burned in the kiln and through the medium of the r03 23 the attendant is enabled to nicely adj ,st the tubular member 20 and may at anytime desired adjustably fix the said tubular member 20: it being understood in this cp nnection that when the screw 16 is turned inwardly the tubular member 20 will be strongly clamped between the said screw 16, on the one hand, and the guides 14, on the other, Figure 4.

Notwithstanding the practical advantages of mynovel hydrocarbon burner for the purpose stated, it will be apparent that the burner is simple and inexpensive in construction, is durable, and is susceptible of being readily disassembled for the cleaning of its parts, and as readily reassembled to put it into condition for use,

Having described my invention, what I claim and desire to secure by Letters-Patent 1. A hydrocarbon burner'comprisinga casing body, a pipe connected to the side of said body and adapted to supply the same with air under pressure, an air nozzle connected to and extending forwardly from the casing body and having an aperture in its forward end and an inwardly directed deflector surrounding said aperture and also having interior spaced fin-like longitudinal guides, a screw bearing in the wall of said air nozzle and arranged in alinement witha space beair nozzle 11 when tween said guides, a tubular member interposed between the guides adapted to be clamped thereby and having a forward flared open end and also having a rear open end, a handle rod connected to the tubular member and guided through the rear wall of the casing body, a tube extending through and fixed in the rear wall of the casing body and having its forward portion disposed in the rear portion of the tubular member, an oil nozzle carried by the forward end of said tube and having a taper bore, a needle valve having a point for cooperation with said taper bore and also having a por tion exterior of the casing, and a conduit connected with the said tube and adapted to be connected with a source of crude oil supply.

2. The combination in a hydrocarbon burner of an air nozzle adapted to be connected with a source of fluid pressure supply and having an aperture in its forward end, a tube having a nozzle at its forward end and adapted to be connected with a source of crude oil supply, a valve complementary to said oil nozzle, a tubular member lengthwise adjustable relatively to said tube receivin in its rear portion and spaced from the oi nozzle and open at its rear end and also open at its forward end and having said end arranged to abut against the inner side of the wall about the opening in the forward end of the air nozle, and means for adjustably positioning the said tubular member.

3. In ahydrocarbon burner, the combination with a nozzle having an opening in its forward end and also having interior fin-like longitudinal spaced guides, a screw bearing in the wall of said nozzle and arranged in alinement with a space between said guides, and an endwise adjustable tubular member provided with a handle and interposed and adapted to be clamped between the {in-like uides and the screw.

In testimony whereof I afiix my signature.

FRANK H. MoFALL.

and the screw and 

